35
36
6.13.2) How to adjust the link stopper screw
1) Check out if there are some rooms between the thread trimming cam roller and both ends of the thread
trimming cam when pushing the thread trimming driving link toward the thread trimming cam from the
operating part of the thread trimming cam at the lowest point of the needle bar.
2) Control the end of the link stopper screw close to the A part of the thread trimming connecting rod while the
thread trimming cam roller is inserted to the operating part of the thread trimming cam.
<Picture 6-24>
6.13.3) Setting of the thread trimming shaft position
1) Loosen the screw for thread trimming driving link and the screw for the thread trimming shaft.
2) Balance the end of the thread trimming shaft with the A part of the arm.
3) Fasten the screw.
thread trimming
cam roller
rooms
rooms
thread
trimming cam
thread trimming
connecting rod
screw for the
link stopper
nut
thread trimming
driving link
thread trimming
connecting rod
link stopper screw
thread trimming cam
screw
thread
trimming
shaft
thread
trimming
driving link
A
A
Caution
1) If there are some rooms between the thread trimming cam roller and both ends of the thread
trimming cam, a malfunction of thread trimming may occur or the assembled parts won’t be
taken out when starting sewing or trimming thread.
2) If the link stopper screw is not properly positioned, the return to the initial position may be
delayed after thread trimming, or the tightening may be not good when sewing a stitch initially.
Caution
When the thread trimming shaft is not properly positioned, it may cause a malfunction of
thread trimming or the assembled parts won’t be taken out.
<Picture 6-25>
Summary of Contents for SPS/F-1811 Series
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